Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.

NTIS

06/23/1988

NTIS

PB-248 829

Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.

NTIS

06/23/1988

Collation

volumes : illustrations ; 28 cm.

Abstract

This report describes a Source Inventory and Emission Factor Analysis (SIEFA), a program designed to determine the precision of emission inventories. Through application of the SIEFA program, users of the data generated in an emission inventory will have at hand not only the values derived from emission calculations but a definition of their quality; that is, a statement of the statistical precision of each value and the precision of the overall emission inventory. The SIEFA program is based on and is compatible with the National Emissions Data System (NEDS). In the report it is shown how each precision value was derived and document the basis for each assumption or estimate involved. Where an emissions value is based on several parameters, such as control device efficiency, process thruput, or sulfur/ash content of fuels, a statistical or engineering analysis is applied to determine the precision of each parameter. This report is presented in three major parts: Part one develops precision values for data on emissions from point sources; Part two deals with emissions from area sources; and Part three presents a system for computerizing the quality analysis of emissions data.